useplunk/plunk ? reverse-engineered prompt

Build me a self hosted email platform like the ones teams use for sending transactional emails and newsletters, but open source and easy to run on my own server.

I want a web app where I can manage contacts, create email templates, send campaigns, and set up simple automations like welcome emails, delays, and conditional follow ups. It should also support sending email through API or SMTP, let me verify my own domain for sending, and show useful stats like opens, clicks, bounces, and delivery activity. If possible, include inbound email handling too, so incoming messages can be routed and processed.

Make it feel like a real product with a clean dashboard, basic settings, and sensible defaults. If you need to check current docs or deployment details, look them up online and keep it compatible with easy self hosting.